Surname Kausthubha (Kausthubha 
) , in all the world, is an extremely rare cognomen. The surname Kausthubha is habitual in Southern Asia, particularly India, where it is an extremely rare surname. More prevalently, Kausthubha is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Kausthubha | United States, India |